Automatically measures and displays a Green Coding Score for websites based on sustainability metrics.
Users
18
+4 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#156K
#130K among extensions
Version
1.1.0
updated 14 Feb 2026
Users
monthly, 9 months
Latest, 16 Oct 2026:18 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 16 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Green Coding Score
Measure any website's environmental impact with a Green Score (0-100). Get instant sustainability insights and optimization tips.
Detailed Description:
🌱 GREEN CODING SCORE - Measure Website Sustainability
Is your favorite website eco-friendly? Find out instantly with Green Coding Score!
This extension automatically analyzes every website you visit and calculates a sustainability score from 0-100, helping developers and users understand the environmental impact of web pages.
✨ KEY FEATURES
• Automatic Scoring - No clicks needed. Visit any site and get an instant green score
• Grade System (A-E) - Quick visual feedback on sustainability performance
• Detailed Metrics - See transfer size, request count, third-party ratio, and load time
• Smart Recommendations - Get up to 3 actionable tips to improve sustainability
• Framework Detection - Identifies WordPress, React, Next.js, Vue, Angular, and more
• Top Resource Analysis - See which files are consuming the most bandwidth
• 100% Private - All calculations happen locally. No data sent anywhere
📊 HOW SCORING WORKS
The Green Score is calculated based on four key metrics:
• Transfer Size (40%) - Total data downloaded
• Request Count (20%) - Number of HTTP requests
• Third-Party Ratio (25%) - External scripts and resources
• Performance Time (15%) - Page load speed
Score Grades:
A (85-100) - Excellent sustainability
B (70-84) - Good performance
C (55-69) - Room for improvement
D (40-54) - Needs optimization
E (0-39) - Poor sustainability
🎯 WHO IS THIS FOR?
• Web Developers - Optimize your sites for sustainability
• Digital Agencies - Audit client websites quickly
• Eco-Conscious Users - Make informed browsing choices
• Performance Engineers - Identify bloated resources
• Anyone curious about web sustainability!
💡 WHY SUSTAINABILITY MATTERS
The internet accounts for approximately 4% of global carbon emissions - more than the airline industry.
Every byte transferred requires energy. By optimizing websites, we can collectively
reduce the environmental impact of the web.
🔒 PRIVACY FIRST
• No data collection
• No external API calls
• No tracking or analytics
• Everything runs locally in your browser
Growth
Window
Users
Change
Ratings
Rating
7 days
+1
+5.9%
0
0.00
30 days
+4
+28.6%
0
0.00
6 months
+7
+63.6%
−1
0.00
Chrome Web Store search rankings
Where Green Coding Score appears when people search the store, with the 30 day change